CA2435763A1 - Fuel cell system - Google Patents
Fuel cell system Download PDFInfo
- Publication number
- CA2435763A1 CA2435763A1 CA002435763A CA2435763A CA2435763A1 CA 2435763 A1 CA2435763 A1 CA 2435763A1 CA 002435763 A CA002435763 A CA 002435763A CA 2435763 A CA2435763 A CA 2435763A CA 2435763 A1 CA2435763 A1 CA 2435763A1
- Authority
- CA
- Canada
- Prior art keywords
- fuel cell
- heat exchanger
- cell system
- cell stack
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/2484—Details of groupings of fuel cells characterised by external manifolds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0065—Solid electrolytes
- H01M2300/0082—Organic polymers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04029—Heat exchange using liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04037—Electrical heating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04052—Storage of heat in the fuel cell system
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention relates to a fuel cell system comprising at least one fuel cell stack and means, which are provided for preheating the supply air and which have a heat exchanger. According to the invention, the heat exchanger has, at least in one dimension of the planar arrangement, the same length as the fuel cell stack. This permits the heat exchanger (30) and the fuel cell stack (10) to be easily arranged one behind the other and to be advantageously accommodated inside a shared housing (100).
Description
Description Fuel cell system The invention relates to a fuel cell system having at least one fuel cell stack comprising individual fuel cells and air-guiding passages arranged between the fuel cells and means for preheating the feed air which include a heat exchanger.
Numerous forms of fuel cell facilities for supplying energy to electric motor drives for motor vehicles are known. A common feature of these different fuel cell facilities is the chemical reaction between hydrogen and oxygen to form water. However, gaseous hydrogen cannot be stored on board in a quantity which is sufficient for prolonged driving operation.
For example, the PEM fuel cell (polymer electrolyte membrane, proton exchange membrane), which operate with a proton-conducting membrane, uses gasoline, methanol or another higher hydrocarbon from which hydrogen-rich gas is obtained as fuel gas by means of a reformer and with oxygen from the ambient air. In particular the HT-PEM fuel cell, which operates at relatively high temperatures, is per se insensitive to impurities, which is true in particular of the fuel gas. The oxidizing agent is obtained from ambient air; in principle, the starting point is normal ambient air which, for example, can be taken from the slip stream of a moving vehicle . The ambient air is generally at a significantly lower temperature than the fuel cell.
When the cold air is [inaudible] into the fuel cell, the fuel cell may be damaged in particular at the air inlet.
Therefore, a heat exchanger, which in particular provides the thermal energy for preheating the feed air, is crucial for operation of a fuel cell system of this type in a motor vehicle.
US 6,106,964 A has disclosed a method for humidifying and controlling the temperature of a process gas for a solid polymer fuel cell, in which a heat exchanger comprising two plates is arranged in direct thermal contact on a fuel cell stack. furthermore, JP 09-204924 has disclosed a fuel cell stack comprising individual coated fuel cells in which each individual fuel cell unit is closed off by a cooling board with a coolant line arranged therein. The cooling board has the same dimensions as an individual fuel cell unit.
Working on the basis of the above prior art, it is an object of the invention to assign a heat exchanger of complex design to the fuel cell stack of a fuel cell system in a suitable way.
According to the invention, the object is achieved by the characterizing features of patent claim 1.
Refinements are given in the dependent claims.
According to the invention, the heat exchanger, at least in one dimension, is of the same size as the fuel cell stack and a common edge with the fuel cell stack, the heat exchanger itself forming a stack comprising individual heat exchanger plates with heat exchanger passages which are connected, via the common edge with the fuel cell stack, to the air-feed passages of an individual fuel cell. This ensures optimum guidance of air.
The heat exchanger may be connected upstream of the fuel cell stack as a separate component. However, it is also possible for the heat exchanger to be arranged vertically above the fuel cell stack, in which case an 2000P20291W0 - 2a -aligned arrangement is produced on account of the identical transverse dimensions. In alternative possible arrangements, the heat exchanger and the fuel cell stack are advantageously accommodated in a common housing. The heat exchanger is of particular importance in particular in the latter case.
Further details and advantages of the invention will emerge from the following description of figures illustrating an exemplary embodiment on the basis of the drawings in conjunction with the further subclaims.
In the drawings:
Figure 1 shows a perspective illustration of a fuel cell stack with a heat exchanger aligned in front of it, and Figure 2 shows a perspective illustration of an alternative design compared to Figure 1, in which the heat exchanger is oriented vertically above the fuel cell stack.
Identical units are provided with identical reference symbols in the two figures. The figures are in part described jointly.
The starting point in both figures is a known fuel cell system which has been extensively described in other contexts. A module 10 of the fuel cell system is generally also referred to as a stack. A stack comprises a stacked arrangement of individual fuel cells 11, 11', ... of width b and height h, the overall stack width a being formed by the fuel cell stack 10.
In this case, the individual fuel cells are stacked in such a manner that there is in each case a space between two cells, through which air is passed in order to supply the cells. The individual spaces may be configured in the form of passages.
Fuel cells which operate with a solid electrolyte and are described as PEM (polymer electrolyte membrane) fuel cells are used for the fuel cell system. Fuel cells of this type are known from the prior art, and for mobile applications fuel cells of this type are advantageously operated at higher temperatures than have previously been described. Operating temperatures of between 80°C and 300°C, in particular in the range from 120°C to 200°C, are used for HT (high temperature) PEM fuel cells of this type. For practical operation, advantages are in particular the lack of influence of the humidity of the process gases, on the one hand, and the moisture of the membrane, on the other hand. The membrane used in this case is made from temperature-stable materials which hold a self-dissociating and/or 2000P20291 WO - 3a -autoprotolytic electrolyte. Furthermore, reduced demands are imposed on the purity of the process gas.
In particular, CO impurity levels of up to approx.
10.000 ppm are tolerated.
To maintain the optimum operating temperature, the fuel module is cooled. Cooling is effected, for example, using a liquid medium, e.g. a suitable oil. This fluid is fed to a heat exchanger 30 and thereby heats the feed air.
The heat exchanger 30 is designed as a plate-type heat exchanger with individual plates 31, 31', .... The plates 31, 31', ... are arranged at a distance from one another, so that a space through which the air is guided is formed. The fluid of the heat exchanger 30 is guided in the plates 31, 31', .... The space between the plates 31, 31' ... can in turn be configured in the form of passages .
In both Figures 1 and 2, the heat exchanger 30 described is in each case connected upstream of the fuel cell module 10. The way in which the fluid is guided is indicated. If the heat exchanger 30 has the same dimension a as the stack width of the fuel cell module 10 perpendicular to the surface of the individual cells 11, 11', ..., the heat exchanger 30 can be assigned to the fuel cell module 10 in such a manner that it is aligned therewith in at least one dimension, as shown in Figure 1.
In accordance with Figure 1, the plates 31, 31', ... of the heat exchanger 30 are aligned with respect to the cells 11, 11, ... of the fuel cell module 10. The cooling air is supplied from the front side and, after it has flowed through the heat exchanger 30, is diverted onto the fuel cell stack 10 by means of a suitably arranged plate 20. Therefore, in particular in the case of a self-aspirating fuel cell system, the air which has been preheated after it has flowed 2000P20291 WO - 4a -through the heat exchanger 30 can be fed to the individual fuel cells 11, 11' over their area.
However, as shown in Figure 2, it is also possible for the heat exchanger 30 to be arranged above the fuel cell module 11, 11', .... This is expedient if cell cooling and heat exchanger function are to be integrated in a single component. The air which flows in at the front is in this case diverted before it flows into the arrangement. In this case, the cooling medium successively flows through the heat exchanger 20 and the fuel cell stack 10 in the same direction.
Consequently, the cooling medium of the fuel cells 11, 11', ... therefore serves as a heat transfer medium for the heat exchanger 30. The fuel cell module 10 and the heat exchanger 30 are advantageously arranged in a common housing 100.
In both arrangements, corresponding to Figure 1 or Figure 2, it is advantageous if the spaces or passages formed by the heat exchanger plates 31, 31' ... of the heat exchanger 30 and the spaces or passages formed by the fuel cells 11, 11', ... adjoin one another seamlessly. This makes the system easy to assemble.
In further exemplary embodiments which supplement or modify Figures 1 or 2, the heat exchanger 30 may be assigned to the fuel cell stack 10 together with an evaporator and/or a condenser. The heat exchanger 30 may be electrically heated. Furthermore, the heat exchanger 30 may be assigned a latent heat store. In this case, the heat exchanger serves as a mixer for rectifying the flow of the incoming air.
It has been found that the arrangements described operate particularly advantageously in combination with PEM fuel cells. In particular if fuel cells of this type are operated at elevated temperatures, i.e. the individual fuel cell works as what is known as an HT-PEM fuel cell, the heat exchanger having the properties described is highly advantageous for disruption-free operation of the system as a whole.
Numerous forms of fuel cell facilities for supplying energy to electric motor drives for motor vehicles are known. A common feature of these different fuel cell facilities is the chemical reaction between hydrogen and oxygen to form water. However, gaseous hydrogen cannot be stored on board in a quantity which is sufficient for prolonged driving operation.
For example, the PEM fuel cell (polymer electrolyte membrane, proton exchange membrane), which operate with a proton-conducting membrane, uses gasoline, methanol or another higher hydrocarbon from which hydrogen-rich gas is obtained as fuel gas by means of a reformer and with oxygen from the ambient air. In particular the HT-PEM fuel cell, which operates at relatively high temperatures, is per se insensitive to impurities, which is true in particular of the fuel gas. The oxidizing agent is obtained from ambient air; in principle, the starting point is normal ambient air which, for example, can be taken from the slip stream of a moving vehicle . The ambient air is generally at a significantly lower temperature than the fuel cell.
When the cold air is [inaudible] into the fuel cell, the fuel cell may be damaged in particular at the air inlet.
Therefore, a heat exchanger, which in particular provides the thermal energy for preheating the feed air, is crucial for operation of a fuel cell system of this type in a motor vehicle.
US 6,106,964 A has disclosed a method for humidifying and controlling the temperature of a process gas for a solid polymer fuel cell, in which a heat exchanger comprising two plates is arranged in direct thermal contact on a fuel cell stack. furthermore, JP 09-204924 has disclosed a fuel cell stack comprising individual coated fuel cells in which each individual fuel cell unit is closed off by a cooling board with a coolant line arranged therein. The cooling board has the same dimensions as an individual fuel cell unit.
Working on the basis of the above prior art, it is an object of the invention to assign a heat exchanger of complex design to the fuel cell stack of a fuel cell system in a suitable way.
According to the invention, the object is achieved by the characterizing features of patent claim 1.
Refinements are given in the dependent claims.
According to the invention, the heat exchanger, at least in one dimension, is of the same size as the fuel cell stack and a common edge with the fuel cell stack, the heat exchanger itself forming a stack comprising individual heat exchanger plates with heat exchanger passages which are connected, via the common edge with the fuel cell stack, to the air-feed passages of an individual fuel cell. This ensures optimum guidance of air.
The heat exchanger may be connected upstream of the fuel cell stack as a separate component. However, it is also possible for the heat exchanger to be arranged vertically above the fuel cell stack, in which case an 2000P20291W0 - 2a -aligned arrangement is produced on account of the identical transverse dimensions. In alternative possible arrangements, the heat exchanger and the fuel cell stack are advantageously accommodated in a common housing. The heat exchanger is of particular importance in particular in the latter case.
Further details and advantages of the invention will emerge from the following description of figures illustrating an exemplary embodiment on the basis of the drawings in conjunction with the further subclaims.
In the drawings:
Figure 1 shows a perspective illustration of a fuel cell stack with a heat exchanger aligned in front of it, and Figure 2 shows a perspective illustration of an alternative design compared to Figure 1, in which the heat exchanger is oriented vertically above the fuel cell stack.
Identical units are provided with identical reference symbols in the two figures. The figures are in part described jointly.
The starting point in both figures is a known fuel cell system which has been extensively described in other contexts. A module 10 of the fuel cell system is generally also referred to as a stack. A stack comprises a stacked arrangement of individual fuel cells 11, 11', ... of width b and height h, the overall stack width a being formed by the fuel cell stack 10.
In this case, the individual fuel cells are stacked in such a manner that there is in each case a space between two cells, through which air is passed in order to supply the cells. The individual spaces may be configured in the form of passages.
Fuel cells which operate with a solid electrolyte and are described as PEM (polymer electrolyte membrane) fuel cells are used for the fuel cell system. Fuel cells of this type are known from the prior art, and for mobile applications fuel cells of this type are advantageously operated at higher temperatures than have previously been described. Operating temperatures of between 80°C and 300°C, in particular in the range from 120°C to 200°C, are used for HT (high temperature) PEM fuel cells of this type. For practical operation, advantages are in particular the lack of influence of the humidity of the process gases, on the one hand, and the moisture of the membrane, on the other hand. The membrane used in this case is made from temperature-stable materials which hold a self-dissociating and/or 2000P20291 WO - 3a -autoprotolytic electrolyte. Furthermore, reduced demands are imposed on the purity of the process gas.
In particular, CO impurity levels of up to approx.
10.000 ppm are tolerated.
To maintain the optimum operating temperature, the fuel module is cooled. Cooling is effected, for example, using a liquid medium, e.g. a suitable oil. This fluid is fed to a heat exchanger 30 and thereby heats the feed air.
The heat exchanger 30 is designed as a plate-type heat exchanger with individual plates 31, 31', .... The plates 31, 31', ... are arranged at a distance from one another, so that a space through which the air is guided is formed. The fluid of the heat exchanger 30 is guided in the plates 31, 31', .... The space between the plates 31, 31' ... can in turn be configured in the form of passages .
In both Figures 1 and 2, the heat exchanger 30 described is in each case connected upstream of the fuel cell module 10. The way in which the fluid is guided is indicated. If the heat exchanger 30 has the same dimension a as the stack width of the fuel cell module 10 perpendicular to the surface of the individual cells 11, 11', ..., the heat exchanger 30 can be assigned to the fuel cell module 10 in such a manner that it is aligned therewith in at least one dimension, as shown in Figure 1.
In accordance with Figure 1, the plates 31, 31', ... of the heat exchanger 30 are aligned with respect to the cells 11, 11, ... of the fuel cell module 10. The cooling air is supplied from the front side and, after it has flowed through the heat exchanger 30, is diverted onto the fuel cell stack 10 by means of a suitably arranged plate 20. Therefore, in particular in the case of a self-aspirating fuel cell system, the air which has been preheated after it has flowed 2000P20291 WO - 4a -through the heat exchanger 30 can be fed to the individual fuel cells 11, 11' over their area.
However, as shown in Figure 2, it is also possible for the heat exchanger 30 to be arranged above the fuel cell module 11, 11', .... This is expedient if cell cooling and heat exchanger function are to be integrated in a single component. The air which flows in at the front is in this case diverted before it flows into the arrangement. In this case, the cooling medium successively flows through the heat exchanger 20 and the fuel cell stack 10 in the same direction.
Consequently, the cooling medium of the fuel cells 11, 11', ... therefore serves as a heat transfer medium for the heat exchanger 30. The fuel cell module 10 and the heat exchanger 30 are advantageously arranged in a common housing 100.
In both arrangements, corresponding to Figure 1 or Figure 2, it is advantageous if the spaces or passages formed by the heat exchanger plates 31, 31' ... of the heat exchanger 30 and the spaces or passages formed by the fuel cells 11, 11', ... adjoin one another seamlessly. This makes the system easy to assemble.
In further exemplary embodiments which supplement or modify Figures 1 or 2, the heat exchanger 30 may be assigned to the fuel cell stack 10 together with an evaporator and/or a condenser. The heat exchanger 30 may be electrically heated. Furthermore, the heat exchanger 30 may be assigned a latent heat store. In this case, the heat exchanger serves as a mixer for rectifying the flow of the incoming air.
It has been found that the arrangements described operate particularly advantageously in combination with PEM fuel cells. In particular if fuel cells of this type are operated at elevated temperatures, i.e. the individual fuel cell works as what is known as an HT-PEM fuel cell, the heat exchanger having the properties described is highly advantageous for disruption-free operation of the system as a whole.
Claims (12)
1. A fuel cell system having at least one fuel cell stack and air-feed passages, which are arranged between the fuel cells, for feed air, and means for preheating the feed air, which includes a heat exchanger, in which system the heat exchanger (30), at least in one dimension, is of the same size as the fuel cell stack, the heat exchanger (30) forming a stack of individual heat exchanger plates (31, 31', ...) with heat exchanger passages which are connected, via the at least one common edge between the heat exchanger (30) and the fuel cell stack (10), to the air-feed passages of an individual fuel cell (11, 11', ...).
2. The fuel cell system as claimed in claim 1, characterized in that heat exchanger (30) and the fuel cell stack (10) have at least one identical cross-sectional area.
3. The fuel cell system as claimed in claim 1 or claim 2, characterized in that heat exchanger (30) and the fuel cell stack (10) in functional terms are connected in series.
4. The fuel cell system as claimed in claim 1, characterized in that the heat exchanger passages (31, 31', ...) of the heat exchanger (30) have the same dimensions as the air-feed passages of the fuel cells (11, 11', ...) and therefore the same cross section of flow.
5. The fuel cell system as claimed in one of the preceding claims, characterized in that the heat exchanger (30) and the fuel cell stack (10) are arranged in a common housing (100).
6. The fuel cell system as claimed in one of the preceding claims, characterized in that the heat exchanger (30) is connected up to the fuel cell stack (10) together with an evaporator and/or a condenser.
7. The fuel cell system as claimed in one of the preceding claims, characterized in that the heat exchanger (30) is electrically heated.
8. The fuel cell system as claimed in one of the preceding claims, characterized in that the heat exchanger (30) includes a latent heat store.
9. The fuel cell system as claimed in one of the preceding claims, characterized in that the heat exchanger (30) acts as a mixer for rectifying the flow of air.
10. The fuel cell system as claimed in one of the preceding claims, characterized in that the cooling medium of the fuel cells (11, 11', ...) is used as a heat transfer medium for the heat exchanger (30).
11. The fuel cell system as claimed in one of the preceding claims, characterized in that the fuel cell stack (10) includes PEM fuel cells (11, 11', ...).
12. The fuel cell system as claimed in one of the preceding claims, characterized in that the fuel cell stack (10) includes HT-PEM fuel cells (11, 11', ...).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10065308A DE10065308A1 (en) | 2000-12-29 | 2000-12-29 | fuel cell plant |
| DE10065308.1 | 2000-12-29 | ||
| PCT/DE2001/004886 WO2002054518A1 (en) | 2000-12-29 | 2001-12-21 | Fuel cell system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2435763A1 true CA2435763A1 (en) | 2002-07-11 |
Family
ID=7669198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002435763A Abandoned CA2435763A1 (en) | 2000-12-29 | 2001-12-21 | Fuel cell system |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20040076862A1 (en) |
| EP (1) | EP1354365A1 (en) |
| KR (1) | KR20030078878A (en) |
| CA (1) | CA2435763A1 (en) |
| DE (2) | DE10065308A1 (en) |
| WO (1) | WO2002054518A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009052620A1 (en) * | 2007-10-22 | 2009-04-30 | Hydrogenics Corporation | Racked power supply ventilation |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005040615A1 (en) * | 2005-08-27 | 2007-03-01 | Behr Gmbh & Co. Kg | Heat transmitter-device for motor vehicle, has heat transmitters that are interconnected so that hydrogen and cooling agent flow through transmitters, where heat transfer takes place between hydrogen flowing in respective regions |
| US7923162B2 (en) * | 2008-03-19 | 2011-04-12 | Dana Canada Corporation | Fuel cell assemblies with integrated reactant-conditioning heat exchangers |
| DE102011086799A1 (en) * | 2011-11-22 | 2013-05-23 | Robert Bosch Gmbh | System with a hand tool case and a hand tool battery |
| US9819044B2 (en) * | 2013-11-04 | 2017-11-14 | Bosal Emission Control Systems Nv | Apparatus comprising a fuel cell unit and a component, and a stack component for use in such an apparatus |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3576677A (en) * | 1967-05-23 | 1971-04-27 | United Aircraft Corp | Fuel cell process air control |
| US3935028A (en) * | 1971-06-11 | 1976-01-27 | Siemens Aktiengesellschaft | Fuel cell set and method |
| JP3202292B2 (en) * | 1992-01-10 | 2001-08-27 | 大阪瓦斯株式会社 | Fuel cell power generation system |
| JPH06103994A (en) * | 1992-09-21 | 1994-04-15 | Toshiba Corp | Fuel cell power generating system |
| JPH09204924A (en) * | 1996-01-25 | 1997-08-05 | Tanaka Kikinzoku Kogyo Kk | Method for humidifying gas of pem type fuel cell and gas humidifier |
| CA2242176C (en) * | 1997-06-30 | 2009-01-27 | Ballard Power Systems Inc. | Solid polymer fuel cell system and method for humidifying and adjusting the temperature of a reactant stream |
| DE19900166C1 (en) * | 1999-01-05 | 2000-03-30 | Siemens Ag | Liquid-cooled fuel-cell battery with integrated heat exchanger |
| US6864005B2 (en) * | 2000-03-08 | 2005-03-08 | Ballard Power Systems Inc. | Membrane exchange humidifier for a fuel cell |
-
2000
- 2000-12-29 DE DE10065308A patent/DE10065308A1/en not_active Withdrawn
-
2001
- 2001-12-21 DE DE10195796T patent/DE10195796D2/en not_active Expired - Lifetime
- 2001-12-21 CA CA002435763A patent/CA2435763A1/en not_active Abandoned
- 2001-12-21 KR KR10-2003-7008846A patent/KR20030078878A/en not_active Application Discontinuation
- 2001-12-21 WO PCT/DE2001/004886 patent/WO2002054518A1/en not_active Application Discontinuation
- 2001-12-21 EP EP01991662A patent/EP1354365A1/en not_active Withdrawn
-
2003
- 2003-06-30 US US10/610,188 patent/US20040076862A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009052620A1 (en) * | 2007-10-22 | 2009-04-30 | Hydrogenics Corporation | Racked power supply ventilation |
| US8241810B2 (en) | 2007-10-22 | 2012-08-14 | Hydrogenics Corporation | Racked power supply ventilation |
| US8563196B2 (en) | 2007-10-22 | 2013-10-22 | Hydrogenics Corporation | Racked power supply ventilation |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20030078878A (en) | 2003-10-08 |
| DE10065308A1 (en) | 2002-07-11 |
| US20040076862A1 (en) | 2004-04-22 |
| DE10195796D2 (en) | 2004-04-15 |
| WO2002054518A1 (en) | 2002-07-11 |
| EP1354365A1 (en) | 2003-10-22 |
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| FZDE | Discontinued |